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소수점 1자리 덧셈

1
5.7
+
2.7
=
8.4
2
8.7
+
2.2
=
10.9
3
4.8
+
9.6
=
14.4
4
1.7
+
5.2
=
6.9
5
2.8
+
8.6
=
11.4
6
3.6
+
1.8
=
5.4
7
6.2
+
6.2
=
12.4
8
1.2
+
3.3
=
4.5
9
1.2
+
2.2
=
3.4
10
8.1
+
7.8
=
15.9
11
1.9
+
6.2
=
8.1
12
2.3
+
4.2
=
6.5
13
4.5
+
4.3
=
8.8
14
2.6
+
7.4
=
10
15
6.4
+
3.1
=
9.5